Table 2.
Number of HPV doses by age of HPV vaccine initiation among 5269 HPV vaccinated females within NIS-teen 2013a.
| Demographic | N (%) | % Receiving vaccine after the age of 12b | Age adjusted RR (95%CI)b, c |
|---|---|---|---|
| Number of HPV doses | |||
| 3 | 3466 (71.2%) | 26.1% | REF |
| 2 | 786 (16.2%) | 43.8% | 1.91 (1.75–2.09)b |
| 1 | 276 (12.7%) | 45.6% | 1.88 (1.71–2.06)b |
| p-Trend | <0.001 | ||
a
Restricted to individuals who were followed at least 24 months following their first HPV vaccine dose.
b
Survey weighted.
c
3 vs. 2/1 doses: RR=1.90 (95% CI=1.76–2.04).